Acnodes OPC 8190 - Manual (Page 61)

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 USB Function
This item allows you to enable or disable USB function.
 USB 2.0 Controller
This item allows you to enable or disable the USB 2.0
controller.
 Audio Controller
This item allows you to enable or disable the audio support.
 SLP_S4# Min. Assertion Width
This item allows you to set the SLP_S4# Assertion Width.
 Restore on AC Power Loss
This item can control how the PC will behave once power is
restored following a power outage, or other unexpected
shutdown.
 PCIE Port Configuration